The GPM Aluminum 7075 Servo Saver Assembly 25T provides a precision engineered upgrade for LOSI 1/4 PROMOTO-MX Motorcycle RTR models. Constructed from 7075 aluminum to improve stiffness and reduce component wear, this servo saver is intended for hobbyists seeking a durable steering upgrade. Be aware it is not compatible with original nylon 23T servos and should be fitted only where spline match is confirmed.